Ian McDiarmid (born 11 August 1944) is a Scottish actor and director best known for portraying Emperor Palpatine in the Star Wars film series. He has received an Olivier Award for Best Actor and a Tony Award for Best Featured Actor in a Play for his performances. Wikipedia
Star Wars Rebels: The Siege of Lothal
Emperor Palpatine (voice)
Dirty Rotten Scoundrels
Arthur
Dragonslayer
Brother Jacopus
Return of the Jedi
The Emperor
Star Wars: Episode I - The Phantom Menace
Senator Palpatine
Star Wars: Episode II - Attack of the Clones
Chancellor Palpatine
Star Wars: Episode III - Revenge of the Sith
Chancellor Palpatine / Darth Sidious
Sleepy Hollow
Dr. Lancaster
Macbeth
The Porter / Ross
The Awakening
Dr. Richter
Star Wars: A Musical Journey
Host
Crime and Punishment
Porfiry
Obi-Wan Kenobi: A Jedi's Return
Self - Emperor Palpatine
Annie: A Royal Adventure
Dr. Eli Eon
All the King's Men
Rev. Pierrepoint Edwards
Margaret
Denis Thatcher
Richard's Things
Burglar
The Likely Lads
Vicar
Star Wars: Evolution of the Lightsaber Duel
Self
Star Wars: Greatest Moments
Self
The Beginning: Making Episode I
Self
Hillsborough
Doctor Popper, Coroner
Restoration
Ambrose
Great Expectations
Jaggers
Sir Henry at Rawlinson End
Reg Smeeton
The Story of Star Wars
Palpatine/The Emperor (archive footage)
The Lost City of Z
Sir George Goldie
Chernobyl: The Final Warning
Dr. Vatisenko
The Adventures of Young Indiana Jones: Demons of Deception
Prof. Levi
Amazing Stories
Blade
Star Wars: The Rise of Skywalker
Emperor Palpatine
Gorky Park
Professor Andreev
Sleepy Hollow: Behind the Legend
Self
The Skywalker Legacy
Self
Heart of Darkness
Doctor
Pity in History
Murgatroyd